Years ago I had a bass that would only eat tilapia, shrimp, smelt never accepted pellets alone I was ok with it because its available in the stores and some bass are just knuckle heads
, soak the tilapia in vitachem and let him eat its better that starving them that badly once he puts on some size and is eating it as it hits the water the stuff with pellets my choice was massivore. I know its a pain to thaw cut and soak or stuff but its the sacrifice we have to make sometimes for the knuckle headed bass.
Keep us posted